<script setup lang="ts">
import {
  onLoad,
  onShareAppMessage,
  onShareTimeline,
  onShow,
} from '@dcloudio/uni-app'
import { getGoodsInfoAPI } from '@/services/goods'
import { computed, ref } from 'vue'
import type { GoodsResult } from '@/types/goods'
import AddressPanel from './components/AddressPanel.vue'
import ServicePanel from './components/ServicePanel.vue'
import GoodsSkeleton from './components/GoodsSkeleton.vue'
import useSkuPopup from '@/hooks/useSkuPopup'
import { useMemberStore } from '@/stores'
import { getCartListAPI } from '@/services/cart'
import type { CartItem } from '@/types/cart'
import type { SkuPopupEvent } from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup'
import { storeToRefs } from 'pinia'
import { useAddressStore } from '@/stores/modules/address'

// 使用SKU弹窗组件hook
const {
  isShowSku,
  skuMode,
  localdata,
  skuPopupRef,
  selectArrText,
  openSkuPopup,
  addCart,
  buyNow,
} = useSkuPopup()

// 获取屏幕边界到安全区域距离
const { safeAreaInsets } = uni.getSystemInfoSync()
// 商品详情数据
// 注意:对象类型的数据一般不给初始值(访问数据时使用可选链),如果指定初始值需要设置必填字段
const goodsInfo = ref<GoodsResult>()
// 当前轮播图展示图片的下标
let currImgIndex = ref(0)
// 底部弹出层组件实例对象
const popup = ref<{
  open: (type?: UniHelper.UniPopupType) => void
  close: () => void
}>()
// 当前展示弹出层的类型
let currPopupType = ref<'address' | 'service'>()
// 控制骨架屏展示与隐藏
let isFinish = ref(false)
// 接收页面参数(商品id)
const query = defineProps<{
  id: string
}>()
// 获取用户仓库中用户数据
const { profile } = useMemberStore()
// 购物车商品数据
const cartList = ref<CartItem[]>([])
// 是否收藏
let isCollect = ref(false)
// 购物车角标
let badge = computed(() => {
  // 计算当前购物车中商品数量
  const selectedCount = cartList.value.reduce((total, item) => {
    if (item.selected) {
      return total + item.count
    } else {
      return total
    }
  }, 0)
  return selectedCount > 99 ? '99+' : selectedCount.toString()
})
// 获取地址仓库中当前选中的地址
const { selectedAddress } = storeToRefs(useAddressStore())

// 获取商品详情数据
const getGoodsInfo = async () => {
  // 显示加载提示框
  uni.showLoading()
  const result = await getGoodsInfoAPI(query.id)
  // 存储商品详情数据
  goodsInfo.value = result.result
  // 将数据转换为SKU组件需要的格式
  localdata.value = {
    _id: goodsInfo.value.id,
    name: goodsInfo.value.name,
    goods_thumb: goodsInfo.value.mainPictures[0],
    spec_list: goodsInfo.value.specs.map((item) => {
      return {
        name: item.name,
        list: item.values,
      }
    }),
    sku_list: goodsInfo.value.skus.map((item) => {
      return {
        _id: item.id,
        goods_id: goodsInfo.value!.id,
        goods_name: goodsInfo.value!.name,
        image: item.picture,
        price: item.price * 100, // 注意:价格需要*100
        stock: item.inventory,
        sku_name_arr: item.specs.map((v) => {
          return v.valueName
        }),
      }
    }),
  }
  // 关闭加载提示框
  uni.hideLoading()
}
// 轮播图切换事件回调
const onSwiperChange: UniHelper.SwiperOnChange = (event) => {
  // 更新当前展示图片的下标
  currImgIndex.value = event.detail.current
}
// 点击图片进入全屏预览
const onTapImage = (url: string) => {
  uni.previewImage({
    // 当goodsInfo.value?.mainPictures为undefined时,url=[] 或是使用非空断言
    urls: goodsInfo.value?.mainPictures || [], // 需要预览的图片连接列表
    current: url, // 当前预览图片的URL
    showmenu: true, // 运行长按图片时显示菜单
  })
}
// 显示弹出层
const openPopup = (type: typeof currPopupType.value) => {
  // 打开弹出层
  popup.value?.open()
  // 存储当前是哪个弹出层
  currPopupType.value = type
}
// sku弹出框中点击加入购物车回调
const onAddCart = async (selectShop: SkuPopupEvent) => {
  addCart(selectShop)
  // 重新获取购物车中的数据并计算徽标的数
  const result = await getCartListAPI()
  cartList.value = result.result
}
// 获取购物车商品列表
const getCartList = async () => {
  const result = await getCartListAPI()
  cartList.value = result.result
}

onLoad(async () => {
  // 展示骨架屏
  isFinish.value = false
  // 获取商品详情数据
  await getGoodsInfo()
  // 关闭骨架屏
  isFinish.value = true
})
// 页面加载
onShow(() => {
  // 获取地址仓库中当前选中的地址
  selectedAddress.value = useAddressStore().selectedAddress
  // 如果用户登录获取购物车商品数量
  if (profile?.token) {
    getCartList()
  }
})
// 分享
onShareAppMessage(() => {
  return {
    title: '这也太便宜了吧',
    path: `/pages/goods/goods?id=${goodsInfo.value?.id}`,
    imageUrl: goodsInfo.value?.mainPictures[0],
  }
})
// 分享到朋友圈
onShareTimeline(() => {
  return {
    title: '这也太便宜了吧',
    path: `/pages/goods/goods?id=${goodsInfo.value?.id}`,
    imageUrl: goodsInfo.value?.mainPictures[0],
  }
})
</script>
.value

<template>
  <!-- 骨架屏 -->
  <GoodsSkeleton v-if="!isFinish" />
  <!-- 商品展示区 -->
  <scroll-view v-else scroll-y class="viewport">
    <!-- 基本信息 -->
    <view class="goods">
      <!-- 商品轮播图 -->
      <view class="preview">
        <swiper circular @change="onSwiperChange">
          <swiper-item
            v-for="(item, index) in goodsInfo?.mainPictures"
            :key="index"
            @tap="onTapImage(item)"
          >
            <image class="image" mode="aspectFill" :src="item" />
          </swiper-item>
        </swiper>
        <view class="indicator">
          <text class="current">{{ currImgIndex + 1 }}</text>
          <text class="split">/</text>
          <text class="total">{{ goodsInfo?.mainPictures.length }}</text>
        </view>
      </view>
      <!-- 商品简介 -->
      <view class="meta">
        <view class="price">
          <text class="symbol">¥</text>
          <text class="number">{{ goodsInfo?.price }}</text>
          <text class="old-number">{{ goodsInfo?.oldPrice }}</text>
        </view>
        <view class="name ellipsis">{{ goodsInfo?.name }} </view>
        <view class="desc"> {{ goodsInfo?.desc }} </view>
      </view>
      <!-- 操作面板 -->
      <view class="action">
        <view class="item arrow">
          <text class="label">选择</text>
          <text class="text ellipsis" @tap="openSkuPopup(1)">
            {{ selectArrText }}
          </text>
        </view>
        <view class="item arrow" @tap="openPopup('address')">
          <text class="label">送至</text>
          <text class="text ellipsis">
            {{
              selectedAddress
                ? selectedAddress.receiver +
                  ' ' +
                  selectedAddress.contact +
                  ' ' +
                  selectedAddress.fullLocation +
                  ' ' +
                  selectedAddress.address
                : '请选择收获地址'
            }}
          </text>
        </view>
        <view class="item arrow" @tap="openPopup('service')">
          <text class="label">服务</text>
          <text class="text ellipsis"> 无忧退 快速退款 免费包邮 </text>
        </view>
      </view>
    </view>
    <!-- 底部弹层-->
    <uni-popup
      ref="popup"
      type="bottom"
      border-radius="10px 10px 0 0"
      background-color="#fff"
    >
      <AddressPanel
        v-if="currPopupType === 'address'"
        @close-popup="popup?.close()"
      />
      <ServicePanel
        v-if="currPopupType === 'service'"
        @close-popup="popup?.close()"
      />
    </uni-popup>
    <!-- 商品详情 -->
    <view class="detail panel">
      <view class="title">
        <text>详情</text>
      </view>
      <view class="content">
        <view class="properties">
          <!-- 属性详情 -->
          <view
            class="item"
            v-for="item in goodsInfo?.details.properties"
            :key="item.name"
          >
            <text class="label">{{ item.name }}</text>
            <text class="value">{{ item.value }}</text>
          </view>
        </view>
        <!-- 图片详情 -->
        <image
          v-for="item in goodsInfo?.details.pictures"
          :key="item"
          mode="widthFix"
          :src="item"
          class="image"
        ></image>
      </view>
    </view>
    <!-- 同类推荐 -->
    <view class="similar panel">
      <view class="title">
        <text>同类推荐</text>
      </view>
      <view class="content">
        <navigator
          v-for="item in goodsInfo?.similarProducts"
          :key="item.id"
          class="goods"
          hover-class="none"
          :url="`/pages/goods/goods?id=${item.id}`"
        >
          <image class="image" mode="aspectFill" :src="item.picture"></image>
          <view class="name ellipsis">{{ item.name }}</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{ item.price }}</text>
          </view>
        </navigator>
      </view>
    </view>
    <!-- 24小时热销 -->
    <view class="similar panel">
      <view class="title">
        <text>24小时热销</text>
      </view>
      <view class="content">
        <navigator
          v-for="item in goodsInfo?.hotByDay"
          :key="item.id"
          class="goods"
          hover-class="none"
          :url="`/pages/goods/goods?id=${item.id}`"
        >
          <image class="image" mode="aspectFill" :src="item.picture"></image>
          <view class="name ellipsis">{{ item.name }}</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{ item.price }}</text>
          </view>
        </navigator>
      </view>
    </view>
  </scroll-view>
  <!-- 底部结算导航栏 -->
  <view class="toolbar" :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }">
    <view class="icons">
      <button class="icons-button" @click="isCollect = !isCollect">
        <text :class="isCollect ? 'iconfont icon-shixintaoxin' : 'icon-heart'"></text
        >收藏
      </button>
      <!-- 客服功能只在小程序端可用 -->
      <!-- #ifdef MP-WEIXIN -->
      <button class="icons-button" open-type="contact">
        <text class="icon-handset"></text>客服
      </button>
      <!-- #endif -->
      <navigator class="icons-button" url="/pages/cart/cart2">
        <!-- uni-badge:数字角标/徽章 -->
        <uni-badge
          class="uni-badge-left-margin"
          :text="badge"
          absolute="rightTop"
          size="small"
        >
          <text class="icon-cart"></text>购物车
        </uni-badge>
      </navigator>
    </view>
    <view class="buttons">
      <view class="addcart" @tap="openSkuPopup(2)"> 加入购物车 </view>
      <view class="buynow" @tap="openSkuPopup(3)"> 立即购买 </view>
    </view>
  </view>
  <!-- SKU弹窗组件 -->
  <vk-data-goods-sku-popup
    ref="skuPopupRef"
    v-model="isShowSku"
    border-radius="20"
    :z-index="990"
    :localdata="localdata"
    :mode="skuMode"
    no-stock-text="售罄"
    :show-close="false"
    buy-now-background-color="#27ba9b"
    add-cart-background-color="#ffa868"
    :actived-style="{
      color: '#27ba9b',
      borderColor: '#27ba9b',
      backgroundColor: '#e9f8f5',
    }"
    @add-cart="onAddCart"
    @buy-now="buyNow($event, '1817941026959003650')"
    @close="getCartList"
  ></vk-data-goods-sku-popup>
</template>

<style lang="scss">
page {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.viewport {
  background-color: #f4f4f4;
}

.panel {
  margin-top: 20rpx;
  background-color: #fff;
  .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90rpx;
    line-height: 1;
    padding: 30rpx 60rpx 30rpx 6rpx;
    position: relative;
    text {
      padding-left: 10rpx;
      font-size: 28rpx;
      color: #333;
      font-weight: 600;
      border-left: 4rpx solid #27ba9b;
    }
    navigator {
      font-size: 24rpx;
      color: #666;
    }
  }
}

.arrow {
  &::after {
    position: absolute;
    top: 50%;
    right: 30rpx;
    content: '\e6c2';
    color: #ccc;
    font-family: 'erabbit' !important;
    font-size: 32rpx;
    transform: translateY(-50%);
  }
}

/* 商品信息 */
.goods {
  background-color: #fff;
  .preview {
    height: 750rpx;
    position: relative;
    .image {
      width: 100%;
      height: 100%;
    }
    .indicator {
      height: 40rpx;
      padding: 0 24rpx;
      line-height: 40rpx;
      border-radius: 30rpx;
      color: #fff;
      font-family: Arial, Helvetica, sans-serif;
      background-color: rgba(0, 0, 0, 0.3);
      position: absolute;
      bottom: 30rpx;
      right: 30rpx;
      .current {
        font-size: 26rpx;
      }
      .split {
        font-size: 24rpx;
        margin: 0 1rpx 0 2rpx;
      }
      .total {
        font-size: 24rpx;
      }
    }
  }
  .meta {
    position: relative;
    border-bottom: 1rpx solid #eaeaea;
    .price {
      height: 130rpx;
      padding: 25rpx 30rpx 0;
      color: #fff;
      font-size: 34rpx;
      box-sizing: border-box;
      background-color: #35c8a9;
    }
    .number {
      font-size: 56rpx;
    }
    .old-number {
      margin: 20rpx;
      font-size: 40rpx;
      color: #fff !important;
      text-decoration: line-through !important;
    }
    .brand {
      width: 160rpx;
      height: 80rpx;
      overflow: hidden;
      position: absolute;
      top: 26rpx;
      right: 30rpx;
    }
    .name {
      max-height: 88rpx;
      line-height: 1.4;
      margin: 20rpx;
      font-size: 32rpx;
      color: #333;
    }
    .desc {
      line-height: 1;
      padding: 0 20rpx 30rpx;
      font-size: 24rpx;
      color: #cf4444;
    }
  }
  .action {
    padding-left: 20rpx;
    .item {
      height: 90rpx;
      padding-right: 60rpx;
      border-bottom: 1rpx solid #eaeaea;
      font-size: 26rpx;
      color: #333;
      position: relative;
      display: flex;
      align-items: center;
      &:last-child {
        border-bottom: 0 none;
      }
    }
    .label {
      width: 60rpx;
      color: #898b94;
      margin: 0 16rpx 0 10rpx;
    }
    .text {
      flex: 1;
      -webkit-line-clamp: 1;
    }
  }
}

/* 商品详情 */
.detail {
  padding-left: 20rpx;
  .content {
    margin-left: -20rpx;
    .image {
      width: 100%;
    }
  }
  .properties {
    padding: 0 20rpx;
    margin-bottom: 30rpx;
    .image {
      width: 100%;
    }
    .item {
      display: flex;
      line-height: 2;
      padding: 10rpx;
      font-size: 26rpx;
      color: #333;
      border-bottom: 1rpx dashed #ccc;
    }
    .label {
      width: 200rpx;
    }
    .value {
      flex: 1;
    }
  }
}

/* 同类推荐 */
.similar {
  &:last-child {
    padding-bottom: 100rpx;
  }
  .content {
    padding: 0 20rpx;
    background-color: #f4f4f4;
    display: flex;
    flex-wrap: wrap;
    .goods {
      width: 340rpx;
      padding: 24rpx 20rpx 20rpx;
      margin: 20rpx 7rpx;
      border-radius: 10rpx;
      background-color: #fff;
    }
    .image {
      width: 300rpx;
      height: 260rpx;
    }
    .name {
      height: 80rpx;
      margin: 10rpx 0;
      font-size: 26rpx;
      color: #262626;
    }
    .price {
      line-height: 1;
      font-size: 20rpx;
      color: #cf4444;
    }
    .number {
      font-size: 26rpx;
      margin-left: 2rpx;
    }
  }
  navigator {
    &:nth-child(even) {
      margin-right: 0;
    }
  }
}

/* 底部工具栏 */
.toolbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background-color: #fff;
  height: 100rpx;
  padding: 0 20rpx var(--window-bottom);
  border-top: 1rpx solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: content-box;
  .buttons {
    display: flex;
    & > view {
      width: 220rpx;
      text-align: center;
      line-height: 72rpx;
      font-size: 26rpx;
      color: #fff;
      border-radius: 72rpx;
    }
    .addcart {
      background-color: #ffa868;
    }
    .buynow,
    .payment {
      background-color: #27ba9b;
      margin-left: 20rpx;
    }
  }
  .icons {
    padding-right: 10rpx;
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex: 1;
    .icons-button {
      // flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: 0;
      margin: 0;
      border-radius: 0;
      font-size: 20rpx;
      color: #333;
      background-color: #fff;
      &::after {
        border: none;
      }
    }
    text {
      display: block;
      font-size: 34rpx;
    }
  }
}
</style>
